674456679 has 16 divisors (see below), whose sum is σ = 1076056800. Its totient is φ = 415050048.

The previous prime is 674456663. The next prime is 674456693. The reversal of 674456679 is 976654476.

674456679 is a `hidden beast` number, since 6 + 7 + 4 + 4 + 566 + 79 = 666.

It is not a de Polignac number, because 674456679 - 2⁴ = 674456663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674456179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 960414 + ... + 961115.

It is an arithmetic number, because the mean of its divisors is an integer number (67253550).

Almost surely, 2^674456679 is an apocalyptic number.

674456679 is a deficient number, since it is larger than the sum of its proper divisors (401600121).

674456679 is a wasteful number, since it uses less digits than its factorization.

674456679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921551 (or 1921545 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 54.

The square root of 674456679 is about 25970.3037910611. The cubic root of 674456679 is about 876.9698982512.

The spelling of 674456679 in words is "six hundred seventy-four million, four hundred fifty-six thousand, six hundred seventy-nine".